Monday, December 3, 2018

Mortality By Weekday by State - 1999-2016

I downloaded the mortality data from the CDC website and plotted the data by state and by day of week the death was reported. I did the same for Deaths Of Despair[ Alcohol/Drug Related deaths, Self Inflicted Firearm related deaths, Depression related deaths]. There were no clear trends to be seen. Nevertheless, there are some interesting observations that can be made. Very few states have  Tuesdays , Wednesdays or Thursdays as leading days of mortality(Both All Cause and Deaths of Despair) which could be people "holding on" till the weekend before passing on. There are clusters of geographical areas which all have the same day of week as the leading day of mortality - for instance the contiguous cluster of  Oregon, Nevada, Utah, Colorado Wyoming, South Dakota and Minnesota all have Saturday as the leading day of all cause mortality and Utah, Colorado, Arizona, New Mexico and Texas have Sunday as the leading weekday for deaths of despair mortality.

Even though I have the leading days of mortality depicted on the maps, there is no significant difference in the numbers for each of the days when all causes are rolled up, as can be seen from the bar graph below :

There is slight increase in the number of deaths in the weekends , most of it is attributable to vehicular accidents :

California shows a noticeable uptick in deaths from vehicle accidents on Wednesdays :

So , if you live in California , stay home on the weekends and on Wednesdays.

Data Source and References :

Dataset: Underlying Cause of Death, 1999-2016
Citation: Centers for Disease Control and Prevention, National Center for Health Statistics. Underlying Cause of Death
1999-2016 on CDC WONDER Online Database, released December, 2017. Data are from the Multiple Cause of Death Files, 1999-2016, as
compiled from data provided by the 57 vital statistics jurisdictions through the Vital Statistics Cooperative Program.

1. Population and rates are labeled 'Not Applicable' when Autopsy, Place of Death, Weekday or Month are grouped by or limited,
due to lack of a valid population. More information:
2. As of April 3, 2017, the underlying cause of death has been revised for 125 deaths in 2014. More information:
3. Death rates are flagged as Unreliable when the rate is calculated with a numerator of 20 or less. More information:
4. Changes to cause of death classification affect reporting trends. More information: Changes.

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